Table 1.

Yeast strains

Strain	Relevant genotype
H661	mig1-Δ1∷LEU2 snf1-Δ1∷his3∷(TRP1, GAL1-lacZ)
H668	mig1-Δ1∷LEU2 snf1-Δ1∷his3∷(TRP1, GAL1-lacZ)
	srb11-Δ1∷HIS3
H707	med1-Δ2∷HIS3
H713	srb11-Δ1∷HIS3
H715	med1-Δ2∷LEU2 srb11-Δ1∷HIS3
H749	mig1-Δ1∷LEU2 snf1-Δ1∷his3∷(TRP1, GAL1-lacZ)
	med1-Δ2∷URA3
H750	mig1-Δ1∷LEU2 snf1-Δ1∷his3∷(TRP1, GAS1-lacZ)
	med1-Δ2∷URA3 srb11-Δ1∷HIS3
H905	med2-Δ1∷HIS3
H909	med2-Δ1∷HIS3 srb11-Δ1∷LEU2
H922	med1-Δ2∷LEU2 med2-Δ1∷HIS3

All strains are W303-1A congenic and therefore also carry the following genetic markers: MATa ade2-1 can1-100 his3-11, 15 leu2-3,112 trp1-1 ura3-1.